Display fields from two post types in one loop/template

• lowercase

• March 31, 2016 at 3:34 pm

I have two post types. I need to display content from each within the same loop. At the moment, the below line breaks the page with a ‘Catchable fatal error: Object of class WP_Post could not be converted to string error’.

<?php the_field('release_artist_name'); ?>

How to I get the release_artist_name field to stop breaking the site? It is a field via a Post Object (post type is named ‘artists’). Any help appreciated.

<?php 
   // get posts
   $posts = get_posts(array(
   	'post_type'			=> 'releases',
   	'posts_per_page'		=> 36,
   'meta_key'			=> 'release_date',
   	'orderby'			=> 'meta_value_num',
   	'order'				=> 'DESC',
   'paged' 			=> ( get_query_var('paged') ? get_query_var('paged') : 1 )
   ));
   
   if( $posts ): ?>
<?php foreach( $posts as $post ): 
   setup_postdata( $post )
   
   ?>
<?php 
   $image = get_field('release_cover_art');
   if( !empty($image) ): 
   	// thumbnail
   	$size = 'medium';
   	$thumb = $image['sizes'][ $size ];
   ?>
<img src="<?php echo $thumb; ?>" alt="<?php echo $alt; ?>" class="img-responsive" />
<?php the_field('release_artist_name'); ?>
<?php endif; ?>
<?php endforeach; ?>
<?php wp_reset_postdata(); ?>
<?php endif; ?>

• James

• March 31, 2016 at 4:45 pm

Hi @lowercase

The_field() functions is used to echoes the returned value. Since the post object field returns WP_Post object, you’ll get that error because PHP doesn’t allow you to echo an object. Please take a look at this page to learn more how to show a post object field: https://www.advancedcustomfields.com/resources/post-object/.

I hope this makes sense.

• lowercase

• March 31, 2016 at 5:02 pm

Thanks James. It didn’t make sense 2 hours ago, but looks to be clearer now. I have it working at last using some tweaked code from your link.